JetBlue check in time refers to the period during which passengers are required to complete the necessary procedures before their flight. As a user-friendly and customer-centric airline, JetBlue offers various check-in options designed to streamline the process and enhance passenger convenience. Passengers can take advantage of online check-in, which opens 24 hours prior to departure and allows them to select seats, pay for additional services, and print or download boarding passes at their own convenience.